<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
	<style type="text/css">
	body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
	label {
		cursor: pointer;
	}
	table {
		border-collapse:collapse;
		border-color: black;
		position: absolute;
	    right: 0;
	    top: 20px;
	    z-index: 100;
	    background: white;
	    text-align: center;
	}
	</style>
	<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=eNxvR05iX64b3peEGOHYhlrBqttwNTlf"></script>
	<title>地图展示</title>
	<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
</head>
<body>
	<div id="years">
		<label for="year2015"><input id="year2015" type="radio" name="year" value="2015"/>2015</label>
		<label for="year2016"><input id="year2016" type="radio" name="year" value="2016"/>2016</label>
		<label for="year2017"><input id="year2017" type="radio" name="year" value="2017"/>2017</label>
	</div>
	<table border="1">
		<tr><th>region</th><th>color</th></tr>
		<tr>
			<td>1</td>
			<td style="background:#ed5565;"></td>
		</tr>
		<tr>
			<td>2</td>
			<td style="background:#fc6e51;"></td>
		</tr>
		<tr>
			<td>3</td>
			<td style="background:#ffce54;"></td>
		</tr>
		<tr>
			<td>4</td>
			<td style="background:#a0d468;"></td>
		</tr>
		<tr>
			<td>5</td>
			<td style="background:#48cfad;"></td>
		</tr>
		<tr>
			<td>6</td>
			<td style="background:#4fc1e9;"></td>
		</tr>
		<tr>
			<td>7</td>
			<td style="background:#5d9cec;"></td>
		</tr>
		<tr>
			<td>8</td>
			<td style="background:#ac92ec;"></td>
		</tr>
		<tr>
			<td>9</td>
			<td style="background:#aab2bd;"></td>
		</tr>
		<tr>
			<td>10</td>
			<td style="background:#ed5565;"></td>
		</tr>
		<tr>
			<td>11</td>
			<td style="background:#656d78;"></td>
		</tr>
		<tr>
			<td>12</td>
			<td style="background:#434a54;"></td>
		</tr>
	</table>
	<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">
	var map = new BMap.Map("allmap", {});                        // 创建Map实例
    map.centerAndZoom(new BMap.Point(105.000, 38.000), 4);     // 初始化地图,设置中心点坐标和地图级别
    map.enableScrollWheelZoom();                        //启用滚轮放大缩小
    var datas = {
    	2015: null,
    	2016: null,
    	2017: null
    }
    var colorSet = ['#ed5565','#fc6e51','#ffce54',
    	'#a0d468','#48cfad','#4fc1e9','#5d9cec','#ac92ec',
    	'#ec87c0','#aab2bd','#656d78','#434a54'];
    var pointCollection = null;
    $('#years').on('change',function(){
    	var val = $("input[name='year']:checked").val();
    	var data = datas[val];
    	if(!data) {
    		$.get(`./server/public/gps-${val}-bd.json`).then(function(res) {
    			datas[val] = res;
    			addPointCollection(res)
			})
    	}else {
    		addPointCollection(data)
    	}
    })
	function addPointCollection(data) {
        var pointsArr = {};  // 添加海量点数据
        for (var i = 0; i < data.length; i++) {
        	if(pointsArr[data[i].region]){
        		pointsArr[data[i].region].push(new BMap.Point(data[i].x, data[i].y));
        	}else {
        		pointsArr[data[i].region] = [new BMap.Point(data[i].x, data[i].y)];
        	}
        }
//      console.log(pointsArr)
        if(pointCollection&&pointCollection.length) {
        	pointCollection.forEach(item=>{
        		map.removeOverlay(item);
        	})
        }       
        pointCollection = [];
        for(var name in pointsArr){
        	console.log(name);
        	var points = pointsArr[name];
        	var options = {
	            size: BMAP_POINT_SIZE_SMALL,
	            shape: BMAP_POINT_SHAPE_STAR,
	            color: colorSet[name]
	        }
        	pointCollection.push(new BMap.PointCollection(points, options));
        }

		pointCollection.forEach(item=>{
			map.addOverlay(item);  // 添加Overlay
		})
        
	}
	$(document).ready(function(){
		$('#year2017').click()
	})
</script>
